397088597 has 4 divisors (see below), whose sum is σ = 397377516. Its totient is φ = 396799680.

The previous prime is 397088591. The next prime is 397088621. The reversal of 397088597 is 795880793.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 795880793 = 13859 ⋅57427.

It can be written as a sum of positive squares in 2 ways, for example, as 68790436 + 328298161 = 8294^2 + 18119^2 .

It is a cyclic number.

It is not a de Polignac number, because 397088597 - 2¹⁰ = 397087573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397088591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142388 + ... + 145149.

It is an arithmetic number, because the mean of its divisors is an integer number (99344379).

Almost surely, 2^397088597 is an apocalyptic number.

It is an amenable number.

397088597 is a deficient number, since it is larger than the sum of its proper divisors (288919).

397088597 is a wasteful number, since it uses less digits than its factorization.

397088597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288918.

The product of its (nonzero) digits is 3810240, while the sum is 56.

The square root of 397088597 is about 19927.0819991287. The cubic root of 397088597 is about 735.0143283183.

The spelling of 397088597 in words is "three hundred ninety-seven million, eighty-eight thousand, five hundred ninety-seven".